RIC only lists workshop A for this issue. I have had another example, but this one has an unusual oval shaped shield on the reverse.
Constantine I
A.D. 318
18mm 3.3gm
IMP CONSTANTINVS AVG; high crested helmet, cuiraissed with spear across right shoulder.
VICTORIAE LAETAE PRINC PERP; two Victories stg., facing one another, together holding shield inscribed VOT PR on altar.
In ex. BSIS*
RIC VII Siscia 49
